Examine source code of Juza Helper

{
  "action": {
    "default_icon": {
      "19": "icon19.png",
      "38": "icon38.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "script.js"
      ],
      "matches": [
        "https://*.juzaphoto.com/*"
      ]
    }
  ],
  "description": "JuzaPhoto.com Helper",
  "host_permissions": [
    "https://www.juzaphoto.com/"
  ],
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "JuzaHelper@TheBlackbird",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "manifest_version": 3,
  "name": "Juza Helper",
  "permissions": [
    "downloads",
    "contextMenus"
  ],
  "short_name": "JuzaHelper",
  "version": "2.4.0"
}